HONG KONG (Reuters) - Eighteen Ukrainian sailors are missing after their tug boat sank off the Hong Kong coast following a collision with a cargo ship last night, local media reported on Sunday.Seven people were rescued, including several that were taken to hospital, Hong Kong radio said.

The 18 crew members were believed to be trapped inside the engine room and the cabins of the boat, which was lying capsized at a depth of 35-metres on the seabed, RTHK radio quoted Wong Chung-shing, a Fire Services divisional commander, as saying.